Family name ハース (Harth 
, Haas , ハース 
) , in the entire world, is a widespread last name. The last name ハース is habitual in Western Europe, particularly Liechtenstein, where it is a common surname, Austria, and Germany, where it is quite a common surname (explore the name in all countries). Measured by absolute frequency, it is the most numerous in Germany, the United States, and Austria. Very seldom, ハース is the forename as well as the last name.